lib/core_extensions/string/camelize.rb
Use unary plus to get an unfrozen string literal. Open
Open
unless String.new.respond_to?(:camelize)
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- Exclude checks
In Ruby 2.3 or later, use unary plus operator to unfreeze a string
literal instead of String#dup
and String.new
.
Unary plus operator is faster than String#dup
.
Note: String.new
(without operator) is not exactly the same as +''
.
These differ in encoding. String.new.encoding
is always ASCII-8BIT
.
However, (+'').encoding
is the same as script encoding(e.g. UTF-8
).
So, if you expect ASCII-8BIT
encoding, disable this cop.
Example:
# bad
''.dup
"something".dup
String.new
String.new('')
String.new('something')
# good
+'something'
+''
Add an empty line after magic comments. Open
Open
module StringExtensions
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- Exclude checks
Checks for a newline after the final magic comment.
Example:
# good
# frozen_string_literal: true
# Some documentation for Person
class Person
# Some code
end
# bad
# frozen_string_literal: true
# Some documentation for Person
class Person
# Some code
end